13 research outputs found
Evaluation of body composition of male Sudan desert sheep
Sixty-six male Sudan desert sheep representing different weight classes of sheep commonly slaughtered in the local market were sacrificed and slaughter and carcass data collected. The model, y= a x xb , in the logarithmic form, was used to describe the patterns of the relative weight changes of the components of the body and to estimate the composition of the empty body and the carcass at different nominal weights. As the sheep increased in empty body weight the percentage represented by organs and offal parts decreased and that of the carcass increased. With increasing carcass weight, wholesale cuts other than loin cut remained a constant percentage of the carcass weight. The percentage of edible meat in the carcass and its cuts increased with increasing carcass weight but that of bone decreased. The percentage of bone in the carcass was exceptionally high compared with recognized mutton breeds. A possible way to improve carcass quality of the Sudan desert sheep through breeding is, presumably, to reduce the bone content of the carcass
Effect of breed-type on carcass weight and composition in sheep
The relative rate of increase in the carcass and its tissues with increasing empty body weight (EBW) or carcass weight respectively, was studied in male sheep from the Dorset Horn (29), Hampshire (21) and Sudan Desert sheep (31). The rate at which the carcass, muscle and bone increased in weight was the same in all breeds but the Sudan Desert sheep deposited fat at a slower rate than the other 2 breeds. At an equally adjusted EBW the Desert sheep had lighter carcass than the Dorset Horn or Hampshire sheep. Sudan Desert sheep had more bone than the other 2 breeds at an equally adjusted cold carcass weight or muscle plus bone weight. At an equally adjusted total carcass fat weight the Sudan Desert sheep had significantly (
Relationships of slaughter and carcass data to carcass composition of Sudan Desert goats
To investigate the relationships of slaughter and carcass data with carcass composition, forty-eight (4-6 months old) entire male Sudan desert goats were purchased and moved to Kuku livestock fattening center. The animals were rested, ear-tagged, dewormed, supplemented with cotton seed cake and wheat bran and slaughtered after ten weeks. Slaughter weight, empty body weight, carcass weight and components of carcass weights were recorded. Simple and multiple (bivariate) correlations were used to study the degree of covariation of slaughter and carcass data with carcass compsition. Slaughter weight was the best (
Studies on Sudan Desert sheep: 1. Effect of feeding to lambs of poor quality dry desert grass (humra) and subsequent refeeding on a high plane of nutrition on live weight growth, carcass yield and offals
Forty–two weaned Sudan Desert lambs of both sexes were divided into three equal sex and age groups and were randomly assigned to one of three diets: Humra + limited amount of cottonseed cake and a complete ration (dura 44 % cottonseed cake 25% dry humra 29% salt 1.5% and vitamin minerals 0.5%). All diets were fed adlibitum for eleven weeks. Then differential feeding was stopped and each group was fed ad libitum on the complete ration for twelve weeks. Two lambs from both sexes were chosen at random for each nutritional treatment, and were slaughtered before the beginning of the trial. Half of the remaining lambs in each treatment was slaughtered at the end of the differential feeding period and the other half at the end of the trial. Generally, the live weight gain of lambs fed on Humra, with or without cottonseed cake, was poor whereas lambs fed on the complete ration made significantly (
A study of some economic traits in a herd of Kenana cattle (North Sudan Zebu). II. Age at first calving and effects of improved nutrition on body development and sexual maturity
The work reported in this paper was initiated to estimate the age at first calving in herd of Kenana cattle with particular reference to the influence of year and season of the birth on age of heifers at calving. It included a feeding trail to elucidate the effects of improved nutrition on body development and sexual maturity of Kenana heifers. The mean age at first calving was found to be 45.2±7.6 months. The study revealed significant (
Características de carcaça de cordeiros Texel x Bergamácia, Texel x Santa Inês e Santa Inês puros, terminados em confinamento, com casca de café como parte da dieta Carcass characteristics of Texel x Bergamacia, Texel x Santa Inês and pure Santa Inês lambs, finished in confinement with coffee hull as a part of the diet
RESUMO - Trinta e seis cordeiros (18 machos inteiros e 18 fêmeas) de três diferentes grupos genéticos: 12 cordeiros cruzas Texel x Bergamácia (T x B), 12 cordeiros cruzas Texel x Santa Inês (T x S) e 12 cordeiros puros Santa Inês (SI) foram alimentados com três diferentes dietas experimentais: A- sem casca de café; B. com casca de café in natura; e C- com casca de café, tratada com uréia e grão de soja moído. Os pesos das carcaças quente e fria, o rendimento de carcaça quente (RC), a quebra de peso da carcaça devido ao resfriamento, as medidas de comprimento interno e total da carcaça, o comprimento de perna, o comprimento total de perna (CTP), o perímetro da garupa (PG), a largura da garupa (LG), a profundidade do tórax (PT) e a gordura subcutânea (GS), de acordo com a dieta, o grupo genético e sexo foram avaliados. Não houve efeito das dietas sobre as variáveis avaliadas. Os cordeiros cruzas T x B e T x S apresentaram menor CTP e maiores PG, LG e GS. Os cordeiros T x B apresentaram valores superiores para PT. Houve superioridade dos animais cruzados nos pesos das carcaças quente e fria, não ocorrendo diferenças para o rendimento da carcaça quente entre os grupos genéticos. Não houve diferença entre machos e fêmeas para GS. As fêmeas apresentaram melhor RC que os machos. Para as outras características, os machos mostraram valores superiores em relação às fêmeas.<br>ABSTRACT - Thirty six lambs (18 male and 18 female) from three different genetic groups: 12 lambs Texel x Bergamacia, (T B), 12 lambs Texel x Santa Inês (T S) and 12 lambs pure Santa Inês (SI) were fed with three different experimental diets: A - without coffee hulls; B - with in natura coffee hull and; C - with coffee hull, treated with urea and whole ground soybean seed. The hot carcass weight (CQ), cold carcass weight (CF), hot carcass dressing (RC), cooling weight loss (QR) and the measures of internal length (CI), and total (CE), leg length (CP), total leg length (CTP), croup circumference (PG), croup width (LG), thoracic depth (PT) and subcutaneous fat width (GS), according to the diet, the genetic group and sex were evaluated. Diets did not affect any of the analyzed variables. The crossbred T x B and T x S lambs showed lower CTP and higher PG, LG, and GS. The Tx B lambs showed higher values for PT. There were higher hot and cold carcass weights for the crossbred lambs, and there was no difference for hot carcass dressing among the genetic groups. There was no difference between male and female lambs for GS. The female lambs showed better RC than male lambs. The male lambs showed higher values for all the other characteristics in relation to the female lambs